CN208589025U - A kind of riverbed lower section advanced pre-reinforcement device of closed conduit antiscour - Google Patents
A kind of riverbed lower section advanced pre-reinforcement device of closed conduit antiscour Download PDFInfo
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- CN208589025U CN208589025U CN201820441305.XU CN201820441305U CN208589025U CN 208589025 U CN208589025 U CN 208589025U CN 201820441305 U CN201820441305 U CN 201820441305U CN 208589025 U CN208589025 U CN 208589025U
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- steel
- closed conduit
- frame
- antiscour
- stone
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Abstract
The utility model discloses the advanced pre-reinforcement devices of closed conduit antiscour below a kind of riverbed, described device includes steel stone frame and miniature steel pipe pile, miniature steel pipe pile is close to be arranged on the outside of steel stone circle frame, steel stone frame frame entirety structure in a rectangular trapezoid, steel stone circle frame includes steel crossbeam, steel vertical beam and steel cant beam, for the setting of steel crossbeam on steel stone circle ladder shape top surface and trapezoidal inclined plane, plane where steel vertical beam is tiltedly installed with the reinforcing of steel cant beam, uses bolt link between each steel beam；The utility model reinforces Below The River Bed instead of the soil body original in foundation pit using steel stone frame, river water down-cutting can effectively be prevented, prevention and treatment closed conduit is exposed and is destroyed, guarantee the normal use of closed conduit, steel stone frame assembling simultaneously is simple, it can effectively shorten the duration, save labour, can be had a wide range of applications in closed conduit field of reinforcement.
Description
Technical field
The utility model relates to the advanced pre-add of closed conduit antiscour below closed conduit reinforcement technique field more particularly to a kind of riverbed
It is fixedly mounted with and sets.
Background technique
Closed conduit carries near zone draining task as the important component of plant drainage system, and closed conduit is reduced
The advantage of moisture evaporation and fortune water saving.And the closed conduit of long range is buried and will necessarily be intersected with river, closed conduit is worn from Below The River Bed
It crosses.This closed conduit, which wears river form, there will naturally be problem, and most important problem is exactly the original when the decline of river riverbed continuous erosion
May be exposed to be embedded in closed conduit below riverbed, and then current scour effect will lead to closed conduit and be destroyed.In general, naturally
River has the characteristics that impact, and bed configuration in time, is spatially all constantly changing, and the lasting punching of river vertical direction
The threat brushed to closed conduit is maximum.So-called continuous erosion refer not only to year in year out for a long time wash away, also refer to a peb process compared with
The continuous erosion of short time has certain tendency, early warning, work sometimes since former river channel erosion is slower
Thread management department can take maintenance measure protection closed conduit from destroying by rush of water before causing disastrous consequence.
The existing reinforcement means to closed conduit pipeline is mainly using to the riverbed design of bed protection for passing through river: by ruggedized construction
It is fixedly installed among the soil body of riverbed bottom.Riverbed river bottom protection has following requirement when constructing:
1. river bottom protection should be connected with two sides slope protection, it is built into one, it must not constriction channel width within the scope of river bottom protection.When oil pipe buries
When deep excessively shallow, E value according to circumstances can slightly increase, and reach design buried depth；When oil pipe buried depth meets design requirement, E is zero,
Downstream should be flushed with riverbed.
2. cemented rock use No. 50 or No. 75 mortars, building stones used answer it is fresh hard, ultimate strength be not less than 30MPa.
Block stone top surface area is not less than 200mm × 200mm, and shape is substantially upright.
3. substrate backfills soil must compaction in layers.When riverbed soil is sand gravel, sand-gravel cushion can be cancelled；Such as
When riverbed soil is mud, surface layer silt displacement should be overlayed blotter.
4. answering section construction when river bottom protection length is larger, and an expansion joint is set every 10m.It is answered at the foundation soil place of changing
Subsiding crack is set, and slit width 20mm stitches interior filling pitch loose hemp fiber.Expansion joint and subsiding crack can merge.In river bottom protection, lower part ear is every 3
~5m sets a drain hole, and anti-filter device should be arranged within the scope of Kong Hou 0.5m to prevent from silting up.
5. 30mm × 30mm can also be used in stilling pond or 50mm × 50mm rubble concrete pours.
As it can be seen that protecting embedded closed conduit using riverbed river bottom protection mode, preventing current scour, not only project amount is big, specific to implement
Scheme is also indefinite；And river bottom protection concrete perfusion, the permeable effect in riverbed is reduced significantly.Therefore, designing one kind, to wear river dark
The reinforcing Anti-scouring device of canal is in terms of reducing closed conduit and destroying, increase closed conduit service life with particularly significant and real meaning
Justice.
Utility model content
In order to overcome above-mentioned deficiency, one of the purpose of this utility model is to provide a kind of riverbed lower section closed conduit antiscour riverbed
The advanced pre-reinforcement device of lower section closed conduit antiscour, the device can effectively prevent river water downcutting washing away and invade to closed conduit
Erosion, prevention and treatment closed conduit is exposed and is destroyed, and guarantees the normal use protection river water incision of closed conduit.
To achieve the goals above, the utility model adopts the following technical solution:
The utility model designs a kind of riverbed lower section advanced pre-reinforcement device of closed conduit antiscour, including steel stone frame and miniature steel
Tubular pole, the miniature steel pipe pile are close to be arranged on the outside of steel stone circle frame, steel stone frame frame entirety structure in a rectangular trapezoid,
Steel stone circle frame includes steel crossbeam, steel vertical beam and steel cant beam, the setting of steel crossbeam steel stone circle ladder shape top surface with
On trapezoidal inclined plane, plane where steel vertical beam is tiltedly installed with the reinforcing of steel cant beam, uses bolt link between each steel beam.
Preferably, the miniature steel pipe pile cantilever height is the half of steel stone frame height degree, can prevent steel stone frame horizontal direction
On displacement.
Preferably, the steel stone frame body interior fills rock gravel, rubble, and steel stone frame is close to closed conduit.
Preferably, the steel stone outer frame side brushing anti-corrosion material, the anti-corrosion material are coal tar epoxide oil paint.Due to steel
Stone frame is arranged in below riverbed, and steel construction easily becomes rusty, and japanning anti-corrosion material can be brushed to steel stone outer frame side, reduces the corrosion of steel
And extent of the destruction.
Preferably, cement injection mortar inside the steel-pipe pile, cement mortar are penetrated into the soil body around drilling, can be filled
The hole of full Rock And Soil, and be sufficiently mixed with Rock And Soil, the integral strength of the miniature steel pipe pile reinforced region soil body is improved,
Increase bearing capacity.
Preferably, the miniature steel pipe pile uses normal carbon Steel material.
Preferably, the miniature steel pipe stake top is connected with each other with attachment beam, and steel stone frame is collectively formed with miniature steel pipe pile
One compound retaining wall, increases the integral strength of steel-pipe pile.
The utility model technical principle is: on the one hand, in river water incision closed conduit surrounding soil, because steel stone frame instead of
Original soil body reinforces Below The River Bed in foundation pit, the shock resistances such as rock gravel, rubble filled out in steel stone frame, corrosion resistance compared with
By force, enhanced close to the river water downstream direction soil body erosion resistibility of closed conduit, effectively prevent erodsion of stream and because river water washes away
Influence the normal operation of closed conduit；On the other hand, steel stone frame and miniature steel pipe pile can reinforce Rock And Soil around closed conduit, improve micro-
The integral strength of the fashioned iron tubular pole reinforcing area soil body, protects closed conduit not by exposed destruction.
In addition, rock gravel, the rubble etc. that site operation can be used to generate for the building stones filled in the utility model steel stone frame, when filling out
When the building stones partial size entered is smaller, anti-drain process is carried out, can be encased building stones with small-bore net or clogs big partial size stone in front
Material.And compared with concrete, rock gravel, the permeable of rubble work well, and the water penetrated in riverbed can flow into the soil body nearby,
And rock gravel, rubble can reduce engineering cost and project amount with on-site collection.
The utility model further provides for the design method of the advanced pre-reinforcement device of closed conduit antiscour below above-mentioned riverbed,
Core is the calculating of steel stone frame height degree, and the specific method is as follows:
Step 1 underlying parameter obtains:
Investigation and Design steel stone frame scene, determines the underlying parameter and steel stone frame basic size of the Below The River Bed soil body, comprising:
In-site measurement, which is surveyed and drawn, determines flow width, thereby determines that the length L of steel stone frame is equal or slightly larger than flow width, steel
Stone frame top width B is equal to steel stone frame length L, and steel stone frame bottom width B is twice of steel stone frame top width b；
According to laboratory test determination block back side soil severe γ d, packing material severe γ s, soil body internal friction angleOn steel stone frame
The angle ε of surface frame wall and vertical direction, the angle of friction δ between frame back and the soil body are swum, frame carries on the back the earth's surface plane inclination β of the soil body.
The calculating of step 2 steel stone frame height degree:
Foundation bearing capacity locating for steel stone frame is required to meet following formula 1:
In formula 1:
Mr--- resistance to tipping moment；
M0--- tilting moment；
Fv--- the vertical force (kN) that steel stone frame is subject to；
B --- steel stone frame bottom width (m)；
Qa--- allowable bearing (kN/m2)。
In formula 2:
Fv--- the vertical force (kN) that steel stone frame is subject to；
δ --- the angle of friction (°) between frame back and the soil body；
B --- steel stone frame bottom width (m)；
B --- steel stone frame top width (m)；
Ka--- active coefficient of earth pressure；
H --- steel stone frame height degree (m)；
γs--- filling building stones severe (kN/m3)；
γd--- frame back side soil severe (kN/m).
In formula 5:
Ka--- active coefficient of earth pressure；
φ --- soil body internal friction angle (°)；
ε --- the angle (°) of steel stone frame upstream surface frame wall and vertical direction；
δ --- the angle of friction (°) between frame back and the soil body.
β --- the ground surface inclination angle (°) of the frame back soil body.
According to equation 1 above -5, steel stone frame height degree can be found out are as follows:
Application of the advanced pre-reinforcement device of closed conduit antiscour in closed conduit field of reinforcement is also that this is practical below above-mentioned riverbed
Novel protection scope.
The utility model compared with prior art, has the advantages that
(1) the utility model product placement is in closed conduit downstream direction, close to closed conduit, in river water incision closed conduit surrounding soil
When, because steel stone frame reinforces Below The River Bed instead of the soil body original in foundation pit, the anti-impacts such as rock gravel, rubble filled out in steel stone frame
Hit, corrosion resistance it is stronger, can effectively prevent river water down-cutting, prevention and treatment closed conduit is exposed and is destroyed, and guarantees closed conduit just
It is often used.
(2) assembling of steel stone frame is simple, can effectively shorten the duration, saves labour, and the processing of steel stone frame part adds in factory
Scene is transported to after the completion of work, only a small amount of worker is needed to assemble and fill building stones, is reduced project amount.
(3) filling building stones are the rock gravel of site operation generation, rubble etc. inside steel stone frame, and carrying is simple, and rock gravel, rubble
With good permeable effect, siltation can effectively prevent, the water penetrated in riverbed can flow into the soil body nearby, and rock gravel,
Rubble can reduce engineering cost and project amount with on-site collection.
(4) steel stone frame does not need to deep-cut horizon d in the case where geology bearing capacity reaches requirement, and amount of excavation is few, and
Each component is freely connected by bolt, copes with the various change of landform, is combined into suitable shape.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the utility model steel stone mount structure；
Fig. 2 is the steel stone mount structure sectional view of the utility model；
Fig. 3 is the miniature steel pipe pile sectional view of the utility model.
In figure: 1- steel stone circle frame；2- steel crossbeam；3- steel vertical beam；4- steel cant beam；5- miniature steel pipe pile；6- steel
Pipe；7- cement mortar induration.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
The present invention will be further described with reference to the accompanying drawings and examples, in order to the reason of technical staff of the same trade
Solution:
Embodiment 1:
With reference to the accompanying drawing, the preferred embodiment of the utility model is further described.
As shown in FIG. 1 to 3, the advanced pre-add of antiscour is designed at certain riverbed closed conduit according to technical solutions of the utility model
It is fixedly mounted with and sets.
1, underlying parameter obtains
Certain section of closed conduit is located at Xichang City, Sichuan Province, and through site inspection, the wide 2m in riverbed determines steel stone frame top width b=1m, bottom width
B=2m, long L=2m, according to laboratory test determination block back side soil severe γd=18kN/m, packing material severe γs=17.6kN/m,
Soil body internalfrictionangleφ=35 °, angle ε=0 ° of steel stone frame upstream surface frame wall and vertical direction, rubbing between frame back and the soil body
Angle δ=23.33 ° are wiped, frame carries on the back earth's surface plane inclination β=25 ° of the soil body, Qa=200kN/m2.
2, the design of the advanced pre-reinforcement device of antiscour
The advanced pre-reinforcement device of closed conduit antiscour below riverbed, including steel stone frame and miniature steel pipe pile, miniature steel pipe pile are tight
It is sticked and sets on the outside of steel stone circle frame, steel stone frame frame entirety structure in a rectangular trapezoid, steel stone circle frame includes steel crossbeam, steel
Crossbeam is visited before vertical beam processed, steel cant beam and steel, is visited crossbeam before steel crossbeam and steel and is separately positioned on steel stone circle ladder shape
On top surface and trapezoidal inclined plane, plane where steel vertical beam is tiltedly installed with the reinforcing of steel cant beam, uses bolt between each steel beam
Connection.
Miniature steel pipe pile cantilever height is the half of steel stone frame height degree, and steel stone frame body interior fills rock gravel, rubble, steel stone
Frame is close to closed conduit, cement injection mortar inside miniature steel pipe pile, and miniature steel pipe pile uses normal carbon Steel material.
Steel stone frame each section component is produced in factory by factory and carries out anti-corrosion processing, transport to later at site operation into
Row on-site assembly.
3, the design of the advanced pre-reinforcement device of antiscour
Steel stone frame width b is 1m, and bottom width B is 2m, and bottom is parallel with closed conduit bottom, and the rock gravel and ballast grain sizes of selection are 20
~30cm, steel stone frame are arranged in the river water downstream direction of closed conduit.
4, the advanced pre-reinforcement device design of antiscour calculates
It is obtained by formula 5:
It is obtained by formula 6:
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (8)
1. the advanced pre-reinforcement device of closed conduit antiscour below a kind of riverbed, which is characterized in that including steel stone frame and miniature steel pipe pile,
The miniature steel pipe pile is close to be arranged on the outside of steel stone circle frame, steel stone frame frame entirety structure in a rectangular trapezoid, steel stone
Circle frame includes steel crossbeam, steel vertical beam and steel cant beam, the setting of steel crossbeam steel stone circle ladder shape top surface with it is trapezoidal
On inclined-plane, plane where steel vertical beam is tiltedly installed with the reinforcing of steel cant beam, uses bolt link between each steel beam.
2. the advanced pre-reinforcement device of closed conduit antiscour below riverbed as described in claim 1, which is characterized in that the miniature steel
Tubular pole cantilever height is the half of steel stone frame height degree.
3. the advanced pre-reinforcement device of closed conduit antiscour below riverbed as described in claim 1, which is characterized in that the steel stone frame
Body interior fills rock gravel, rubble.
4. the advanced pre-reinforcement device of closed conduit antiscour below riverbed as described in claim 1, which is characterized in that the steel stone frame
Outside brushing anti-corrosion material.
5. the advanced pre-reinforcement device of closed conduit antiscour below riverbed as claimed in claim 4, which is characterized in that the preserving timber
Material is coal tar epoxide oil paint.
6. the advanced pre-reinforcement device of closed conduit antiscour below riverbed as described in claim 1, which is characterized in that the steel-pipe pile
Internal cement injection mortar.
7. the advanced pre-reinforcement device of closed conduit antiscour below riverbed as described in claim 1, which is characterized in that the miniature steel
Tubular pole uses normal carbon Steel material.
8. the advanced pre-reinforcement device of closed conduit antiscour below riverbed as described in claim 1, which is characterized in that the miniature steel
Tubular pole stake top is connected with each other with attachment beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820441305.XU CN208589025U (en) | 2018-03-30 | 2018-03-30 | A kind of riverbed lower section advanced pre-reinforcement device of closed conduit antiscour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820441305.XU CN208589025U (en) | 2018-03-30 | 2018-03-30 | A kind of riverbed lower section advanced pre-reinforcement device of closed conduit antiscour |
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| Publication Number | Publication Date |
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| CN208589025U true CN208589025U (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820441305.XU Expired - Fee Related CN208589025U (en) | 2018-03-30 | 2018-03-30 | A kind of riverbed lower section advanced pre-reinforcement device of closed conduit antiscour |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108416170A (en) * | 2018-03-30 | 2018-08-17 | 国网浙江省电力公司湖州供电公司 | A kind of advanced pre-reinforcement device of riverbed lower section closed conduit antiscour and design method |
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2018
- 2018-03-30 CN CN201820441305.XU patent/CN208589025U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108416170A (en) * | 2018-03-30 | 2018-08-17 | 国网浙江省电力公司湖州供电公司 | A kind of advanced pre-reinforcement device of riverbed lower section closed conduit antiscour and design method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190308 Termination date: 20190330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |